Electric time-switch.



No. 817,175. PATENTED APR. 10. 1906. 0. E. KATSGH.

ELECTRIC TIME SWITCH.

APPLICATION FILED MAR.415. 1905.

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ELECTRIC TIME SWITCH.

APPLICATION FILED MAR.15, 1905.

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APPLICATION FILED MAR.15. 1905.

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No. 817,175. PATENTED APR. 10, 1906.

. c. E. KATSOH.

ELECTRIC TIME SWITCH. I

APPLIGATION FILED HAE.15. 1905.

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No. 817,175. PATENTED APR. 10,1906.

0. E. KATSGH.-

ELECTRIC TIME SWITCH.

APPLICATION FILED MAR.15. 1905.

5 SHEETS-SHEET 5.

- vision of a time-switch illustrated CHARLES E. hA'lStl-I. OF NEW HAVEN, CONNECTICUT.

ELECTRIC TIME-SWITCH.

Specification of Letters Patent.

Patented April 10, 1906.

Application filed March 15,1905. Serial No. 250,189.

To alive/101m it may concern/.- 1

Be it known that 1, CHARLES KATscI-r, a l

" citizen of the United States, and a resident of i New Haven, in the county of New Haven and State of Connecticut, have invented Improvements in jtatomatic Electric Time- Swit'c'hes, of which the following is a specification.

"My invention relates to automatic electric time-switches, and has for its object the proadapted to break or complete an electric circuit at any time during a twentyfour-hour day.

A further object of the invention is the provision of an electric time-switch operated by clock mechanism, said clock mechanism cooperating with independent tripping mechanisms having independent setting-dials and pointers for each of said tripping mechanisms, whereby the time at which said switch is to be opened and closed may be varied at will.

Further objects and advantages of the invention will be set forth in the detailed description which now follows.

In the accompanying drawings, Figure 1 is a front elevation of a time-switch constructed in accordance with the invention. Fig. 2- is an elevation with the front of the casing of the time-switch removed, illustrating the setting mechanisms which control the tripping mechanisms hereinafter described and also illustrating an electric switchin its closed position. Fig. 3 is an elevation ,of portions of the tripping mechanisms and of a motor mechanism hereinafter described. In said figure certain elements of a clock mechanism proper are indicated in dotted lines. Fig. 4 is an end elevation of a clock-frame, showing the above-mentioned motor mechanism mounted therein. Fig. 5 is a vertical section of the time-switch casing looking from the rear of said casing. Fig. 6 isa detail perspective view of a spindle and tripping-levers hereinafter described. Fig.7 is a detail perspective view of a second spindle and tripping-levers hereinafter described. Fig. 8 is a detail perspective view of a third spindle and tripping-levers hereinafter described. Fig. 9 is a detail perspective view of a fourth spindle and tripping-levers hereinafter described. Fig. 10 is a detail perspective View in their assembled position of the tripping members in Figs. 6, 7, 8, and 9, showing the manner in which they engage certain cams plates 38 and 39, comprisin and a trip-wheel, as hereinafter set forth; and

Fig. 11 is a detail sectional view illustrating the manner of mounting the setting-wheels.

Like numerals designate similar parts in all of the figures of the drawings.

Referring to the drawings, the numeral 5 designates a casing of any desired form, having its upper portion 6 separated from its lower portion 7 by a horizontal wall or shelf 8 and having its front portion 9 separated from its rear portion 10 by a vertical wall 11. A. clock-frame 12 is secured to wall 11 by screws 13, which pass through perforated ears or lugs 14 of said clock-frame. Rotatively mounted in clock-frame 12 is the main arbor 15 of an ordinary clock mechanism, (indicated in dotted lines in Fig. 3,) upon which are mounted in the usual manner the hour and minute hands 16 and 17. Secured to the shaft of hour-hand 16 and rotating at equal speed therewith is a gear-wheel 18,

which meshes with gear-wheels 19 and 20,

said gear-wheels having twice as many teeth as the gear-wheel 18, in consequence of which they make but one revolution to two revolutions of said gear-wheel 18. Short studs 21 and 22 are rigidly attached to clock-frame 12. Ratchet-wheels 23 and 24 are sleeved upon said studs 21 and 22 and carry pointers 25 and 26, which coact with setting-dials 27 and 28, stamped or otherwise inscribed upon the main dial 29 of the clock. Gearwheels 19 and 20 are loosely mounted upon the shafts of and abut ratchet-wheels 23' and 24 in such manner that spring-pressed pawls 30 and 31, carried by the inner faces of gearwheels 19 and 20,will engage the teeth of said ratchet-wheels.

A motor mechanism (see Figs. 3 and 4) is mounted in frame 12 and comprises a gearwheel 32, adapted to be driven in the direction of the arrow a by a spring 33, one end of which is secured in the wellknown manner to shaft 34 of gear-wheel 32 and the other end of which is secured to a tie-rod. 35, which, together with tie-rods 36 and 37, binds the clock-frame 12, together. A ratchet-wheel 40, carried by shaft 34, engages a spring-pressed pawl 41, carried by gear-wheel 32, thereby providing means for winding spring 33 in the wellknown manner, to which endthe shaft 34 is squared, as at 34, 'said squared portion of shaft 34 registering with the keyhole 42 formed in main dial 29.

Mounted for. rotation in frame 12 is a shaft 43, carrying a pinion 44, which meshes with '50and 51.

ried thereby-being driven. by ear-wheel 32' gear-wheel 32, a gear-wheel 45 and cams 46 and 47, having recesses 48 and 49 formed therein of such shape asto' produce shoulders Shaft 43 and the elements carand 63,'spindle 60 carrying trip-levers 64 and v 65, spind '68, spindle 62 carrying trip-levers 69 70, and

e 61 carrying trip-levers 66, 67., and

Spindle 63 carrying trip-levers 71, 72, and 73. torsional spring 74 is wound upon spindles 60-and 63 and has its ends secured to each of said spindles; in such manner that said spring.

normally 'tends to throw said spindles to theirlimitof movement to the'left in Fig. 3, which results in the trip-levers carried by said spindles being thrown downwardly to their limit of movement. A torsional spring 75, wound in like manner upon spindles 61 and 62, performs a similar function in regard .to those spindles.

, Mounted for oscillatory movement upon short studs 76 and 77, carried by frame 12, (see Fig. 2,) are trip-actuating levers 78 and 79. Lever 78 comprises an. upwardly-extending arm 80, having its upper end slotted, as at 81, and a downwardly-extending arm 82, the lower end of which lies in the path of movement of an inwardly-extending pin 83,

carried by ratchet-wheel 23. A transverse o-extension 84 of arm 69 engages the slotted end 81 of lever 78 for a purpose hereinafter described The tri -actuating lever 79 comrises a downward? -extending arm 85, the ower end of which ies in the path of move- -ment of an inwardly-extending pin 86, carried b ratchet-wheel 24, and an upwardlyexten ing arm 87, to'which is pivoted a link 88, the opposite end of said link bein' pivoted to trip-lever 71 for a purpose whic will be hereinafter described. Stop-pins 89 and 90 limit the movement of trip-actuating arms 78 and-79 to the left. y

Shaft 43 of thehereinbefore-described motor mechanism extends through the vertical wall 11 of casing 5 and has secured thereon a crank 91, carrying a wrist-pin 92, which engagesone end of a connecting-rod 93, the

other end of said connecting-rod being secured at 94to a handle 95 or an ordinary electric switch 96. Said swgitch comprises the usual terminals 97 and 98 and circuit-com pleting bars 99, said bars being pivoted at 100. to terminals 98, whereby upon the rotationof crank 91 circuit-complctin bars 98 will be rocked upon pivots 100, and thereby open'and close the. electric circuit, as will be hereinafter described.

The operation of the Since the gear-wheel 18 is fast upon and rotates with hour-hand 16, it follows that said gear-wheel will make I two v revolutions in twenty-four hours. Gear-wheels 19 and 20, having twice as many teeth as gear-wheel 18, make but one revolution in twenty-four hours. Both of the last-mentioned gearwheels rotate in the direction indicated by arrowG. Gear-Wheels 19 and 20 drive the ratchet-wheels 23 and 24 throu h the medium of pawls 30 and 31. The dials 27 and 28 are numbered .from 1 to 24, and pointer 25 is turned to such position upon dial 27 as will cause pin 83 to engage the lower end of trip-actuating lever 78 at the time it is desired to have the motor mechanism act to close the switch, while pointer 26 is set atLsuch a position upon dial 28 as will causepin 86 to engage the lower end; of tripactuating lever 79 at the time it is desired to have the motor mechanism act to open said switch. The pawl-and-ratchet en agement device is as follows:

between gear-wheels'19 and 20 an ratchetwheels 23 and 24 permits the turning of said ratchet-wheels and their pointers with relation to said gear-wheels, as will be readily understood. When the switch is ooen, the crank 91, carried by shaft 43 of the motor mechanism, is in the position indicated in full 'lines in Fig.5, at which time lever 66, carried by spindle 61, lies in recess 49 of cam 47 which permits lever 67, also carried by spindle 61, to be depressed by spring 75 far enough for the end of said lever to move into the path of stop-lug 55 of gear 54 to thereby hold the motor mechanism against rotation. When pin 83 engages the lower end of trip-actuating lever 78, said lever is rocked upon its pivot, the up er end thereof being thrown to the right in ig. 2, and through the engagement of lever 69 therewith spindle 62 is turned slightly to the right against the tension of spring 75. When this action takes place, lever 70, carried by spindle 62, is raised until it engages the under side of lever ,68, carried by spindle 61, raising said lever, and

thereby turning spindle 61 against the ten- 75 until lever 66 is lifted from sion of spring 47 and lever 67 is lifted from recess 49 of cam enga ement with stop-lug 55, thereby leave motor mechanism free to act until a ing t gear-wheel 54 makes a half-revolution, when stop-lug 55 engages the raised end of lever 7 O, which has in its upward movement come into the path of said lug, again arresting the motor mechanism. Gear 54 makes four revolutions to one revolution of cams 46 and 47, so that in the half-revolution of gear 54' said cams and shaft 43, upon which they are mounted, have made an eighth-revolution, thereby moving crank 91 to the dotteddine position (Z (see Fig. 5) and leaving the end of lever 66 upon the highpart of cam 47, thereby holding lever 67 out of engagement with st'0p lug 55. The parts maintain the position just described until pin 83-passes'from engagement with lever 78, thereby permitting said lever and levers 69 and 70 to-return to their drops into recess 48 of cam46, and the outer end of lever'65, also carried by spindle60,

drops into position to engage stop-lug 56 oi" gear 54, (see Fig. 1.0,)thereby agam'arrestin the motor mechanism. Theabov'e-describe three-eighties revolution of shaft 43 carries crank 91 to dotted-line position e, Fig '5, and

closes the switch, as Wlll readi-ly be'under stood. The switch now remains closed'until pin 86, carried b ratchet-wheel 24, engages the lower end of ever 85, turning said lever upon stud 77 and through link 88 partially rotating spindle 63 to theright in Fig. 3, which results in the outer end of lever 72 engaging the under side of lever'64, thereby .raising the end of said lever from recess'48 of cam 46 and the outer end of lever from enga ement with stop-lug 56 of gear 54,1eaving t e motor mechanism free to act until gear 54 makes a half-revolution, at which time stop-lug 56 engages the outer end of lever 7 3, which by reason of the partial rotation imparted to s indle 63 has been raised into the path of said lug, thereby again arresting the motor mechanism. During the half-revolution of gear 54 shaft 43 makes an eighthrevolution, which brings crank .91 to the dotted-line position f, (see Fig. 5,) thereby open-. ing switch 96. he parts remain in the osition just described until pin 86 passes .om engagement with. lever7 9, when said lever and levers 72 and 7 3 resume their normal position under the influence of spring 74, thereb leaving the motor mechanism free to act until shaft 43 makes three-eighths of arevolution, at which time recess 49 of cam 47 comes into position for the outer end of'lever 66 to drop therein, thereby. ermitting the outer end of lever 67 -to ble t r-rown downwardlyiuntil it en ages sto u 55 re arator to re eatin th; above-diascr lbed o rationhf closihg an o ening'switch 96; it eing obvious that the.

t iree-eighths revolution of shaft 43 will again bring crank 91 to the position illustrated in full lines in Fig. 5,

From the foregoing descri tion it wilhbe seen that efficient means are erein provided for aomplishing the objects of the invention; but while the elements shown and 'de-, scribed are well adapted to serve tlie'-purposes for which they are intended itis to be. understood that/my invention is not limitedthereto, for changes in the detailsof the de-' vice may be resorted to without depertpre. from and invention. Lila-the opening cesses, a' trip-Wheel in tripping-lugs carried vers wil release the motor mechanism by being thrown into engagement with or dra and'closing mechanism is not limited to use with the specific form of switch shown, for it may be used in connectionwith other forms of switches, ifdesired.

Having thus described my invention, what I'claimis-. I

'1. In a switchecont-rolling mechanism, the combination with a meter mechanism, of a shaft driven bygsaid-motor mechanism, a

switcn controlling member carried, by said shaft, trippin mechanism for alternately arrestin and 're easing said motor mechanism, a clue mechanism, gear-wheels driven by said clock mechanism, ratchet-wheels driven by said gear-wheels and contact-pins carried by said ratchet-wheels. I a

12. In a switch-controlling mechanism, the combination-with a. .-clockmechanism, of a gear-wheel driven bysaid clock mechanism and rotative once in twelve hours, gearwheels meshing with the aforesaid gear-wheel and rotative once in' twenty four hours, ratchet-wheels driven by said gear-wheels and movable with relation thereto, trip-actuating pins carried bysaid ratchet-wheels,

trippin mechanisms with which said pins al- I ternate y enga e, a motor mechanism-and a switch-control g member driven by said mechanism adapted to be alternately arrested and released by said tripping mechan- 181118.

3. In a switch-controlling mechanism,the combination .with a motor mechanism, o l'- a shaft driven by said motor mechanism, a switch-controlling member carried by said shaft, tripping mechanism for alternately ar rest-in and releasing said motor mechanism,

a 0100 mechanism, gear-wheels driven by said clock mechanism, ratchet-wheels driven by said gear-wheels and movable with rela-' tion thereto, pointers carried by said ratchetwheels and dials with which said pointers coact and contact -pins also carried by said ratchet-wheels adapted to alternately engage said tripping mechanism.

4. In a snitch-controlling mechanism, the

combination of a motor comprising a rotary cam-carrying shaft, cams mounted upon said shaft and having diametrically-disposed regear with said motor,

y said trip-wheel a 'plnralityof oscillatory s indies, springs or tending to turn said s in es in one direction,

trippin -levers carrie by said spindles, timecontrol ed, setting mechanisms,- means for varying the movementef-eaid settin mechanisms with. relation to eachother an means controlled by saidsett'm g mechanisms whereby at a lpredetermined time the tripping-lebe actuatedQt'o thereby arrest and from engagement with the trip ing-luge of t e gear-wheel and the recesses o the cams.

5. In a switch-controlling mechanism, the

combi ation with a rotary spring drivengear-w eel, of a shaft carrying a pinion which meshes with said gear-wheel, a switch-controlling member mounted u on said shaft,

5 cams mounted upon said sha t, a gear-wheel mounted-upon said shaft and meshing witha pinion carried by a second shaft, a trip-wheel mounted upon said second shaft, trip-lugs carried by said trip-Wheel, oscillatory spin- 1o dles, springs for tending to turn said spindles 15 ment of said opening and closing mechanisms with relation to each otherand pins carried by said opening and closing mechanisms, 0scillatory ev'ers, ,the lower ends of which lie in v the path of said ins and connections between 2o said oscillatory evers and the spindles where by at a predetermined time, said spindles will be rocked 'to thereby throw the trippinglevers intoor from engagementwith the lugs of the trip-wheel and the cam to thereby per, 2 5 mit the said spring-actuated gear to impart an intermittent movement to the cam-carrying shaft.

v6. In av switch-controlling mechanism,- the u combination with a clock-frame comprising a pair of plates, of a clock mechanismmounted therein, a motor mechanism also mounted therein, a shaft rotated by said motor mechanism, a switch-controlling member carried by said shaft, a pair of gear-wheels driven by 'the clock mechanism, ratchet-wheels driven by said gear-wheels and movable with relation thereto,'pointers carried by said ratchetwheels, dials with which said pointers coact, pins carried .by saidratchetwheels, oscilla tory levers mounted upon the clock-frame, the lower ends of which lie in the path of movement of s'aid'pins, oscillatory spindles mounted in the clock-frame and carrying tri -levers and connections between said oscil atory spindles and said oscillatory levers w ereby when saidlevers are oscillated, said sp ndles will likewise be oscillated to thereby a ternately actuate the tripping levers' and 'BIIIllt the motor mechanism to impart an alternate movement .to the switch-controlfling member. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' CHARLES E. KATSCH.

Witnesses:

MATTHEW, A. REYNOLDS,

vM. A. SEGAR. 

